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The first packet discarding scheme will have a slight impact on the user experience, because discarding the first packet retransmission will increase the response time of the service. In view of this, a better TCP Proxy scheme has been developed. All SYN data messages are accepted by the cleaning equipment and processed according to the SYN Cookie scheme. The IP address that successfully established the TCP three-way handshake with the device is determined to be a legitimate user to join the white list. The device disguises the real client IP address, completes the three-way handshake with the real server, and then forwards the data. However, if there is no IP address that shakes hands with the device three times within the specified time, it is determined that the malicious IP address is blocked for a certain period of time. In addition to SYN Cookie combined with TCP Proxy, the cleaning equipment also has the ability to detect a variety of abnormal TCP flag bit packets, and identifies normal access and malicious behavior by returning unexpected responses to SYN messages to test client responses.老天爷保佑，希望这个惹事精不是真玉米，还是原来的玉米好。Go straight in ~ ~武警总队特勤中队长秦观报仇心切，在行动中强行解救人质失败，导致恐怖分子“血狼”逃走，人质被害。秦观受到降职处分。部队决定吸纳女兵加入特勤队伍，秦观接兵时目睹了武术专业女大学生柠檬在街头维持正义，对她的身手大为赞赏，动员柠檬参军。同寝室的陈萱、柳真真决定和好友一同应征。再说，板栗哥哥那天为了自己。他说的修身齐家等道理，是君子必修的根本，对这些乡野村夫愚妇而言，那不是对牛弹琴？便是兴学以教化民众，也非一日之功。